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postgres/src/Makefile.shlib
Tom Lane 1e7bb2da57 Arrange to strip libpq.so of symbols that aren't officially supposed to 
be exported on Linux and Darwin.  We already did this on Windows but
that's not enough, as evidenced by the fact that libecpg had an unexpected
dependency on one such symbol.  We should try to do it on more platforms.
Fix ecpg's oversight, and bump libpq's major .so version number to reflect
the unwanted but nonetheless real ABI break.
2006-04-28 02:53:20 +00:00

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Makefile
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#-------------------------------------------------------------------------
#
# Makefile.shlib
# Common rules for building shared libraries
#
# Copyright (c) 1998, Regents of the University of California
#
# IDENTIFICATION
# $PostgreSQL: pgsql/src/Makefile.shlib,v 1.104 2006/04/28 02:53:20 tgl Exp $
#
#-------------------------------------------------------------------------
# This file should be included by any Postgres module Makefile that
# wants to build a shared library (if possible for the current
# platform). A static library is also built from the same object
# files. Only one library can be built per makefile.
#
# Before including this file, the module Makefile must define these
# variables:
#
# NAME Name of library to build (no suffix nor "lib" prefix)
# SO_MAJOR_VERSION Major version number to use for shared library
# SO_MINOR_VERSION Minor version number to use for shared library
# OBJS List of object files to include in library
# SHLIB_LINK If shared library relies on other libraries,
# additional stuff to put in its link command
# (If you want a patchlevel, include it in SO_MINOR_VERSION, e.g., "6.2".)
#
# Optional flags when building DLL's (only applicable to win32 and cygwin
# platforms).
# DLLTOOL_DEFFLAGS Additional flags when creating the dll .def file
# DLLTOOL_LIBFLAGS Additional flags when creating the lib<module>.a file
# DLLWRAP_FLAGS Additional flags to dllwrap
# DLL_DEFFILE Use pre-existing .def file instead of auto-generating
# one with all exports in it (win32 only).
#
# The module Makefile must also include
# $(top_builddir)/src/Makefile.global before including this file.
# (Makefile.global sets PORTNAME and other needed symbols.)
#
# This makefile provides the following (phony) targets:
#
# all-lib build the static and shared (if applicable) libraries
# install-lib install the libraries into $(libdir)
# uninstall-lib remove the libraries from $(libdir)
# clean-lib delete the static and shared libraries from the build dir
#
# Since `all-lib' is the first rule in this file you probably want to
# have the `all' target before including this file. In the most simple
# case it would look like this:
#
# all: all-lib
#
# Similarly, the install rule might look like
#
# install: install-lib
#
# plus any additional things you want to install. Et cetera.
#
# Got that? Look at src/interfaces/libpq/Makefile for an example.
#
# While the linker allows creation of most shared libraries,
# -Bsymbolic requires resolution of all symbols, making the
# compiler a better choice for shared library creation on ELF platforms.
# With the linker, -Bsymbolic requires the crt1.o startup object file.
# bjm 2001-02-10
COMPILER = $(CC) $(CFLAGS)
LINK.static = $(AR) $(AROPT)
ifeq ($(enable_shared), yes)
# Insert -L from LDFLAGS after any -L already present in SHLIB_LINK
SHLIB_LINK := $(filter -L%, $(SHLIB_LINK)) $(filter -L%, $(LDFLAGS)) $(filter-out -L%, $(SHLIB_LINK))
# Need a -L-free version of LDFLAGS to use in combination with SHLIB_LINK
LDFLAGS_NO_L := $(filter-out -L%, $(LDFLAGS))
# Default shlib naming convention used by the majority of platforms
shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
shlib_major = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
shlib_bare = lib$(NAME)$(DLSUFFIX)
# For each platform we support shared libraries on, set shlib to the
# name of the library (if default above is not right), set
# LINK.shared to the command to link the library,
# and adjust SHLIB_LINK if necessary.
# Try to keep the sections in some kind of order, folks...
override CFLAGS += $(CFLAGS_SL)
soname = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
ifeq ($(PORTNAME), aix)
shlib = lib$(NAME)$(DLSUFFIX)
# SHLIB_LINK += -lc
endif
ifeq ($(PORTNAME), darwin)
ifneq ($(SO_MAJOR_VERSION), 0)
version_link := -compatibility_version $(SO_MAJOR_VERSION) -current_version $(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
endif
ifeq ($(DLTYPE), library)
# linkable library
DLSUFFIX := .dylib
LINK.shared = $(COMPILER) -dynamiclib -install_name $(libdir)/lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX) $(version_link) $(exported_symbols_list) -multiply_defined suppress
else
# loadable module (default case)
DLSUFFIX := .so
LINK.shared = $(COMPILER) -bundle -multiply_defined suppress
endif
shlib = lib$(NAME).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)$(DLSUFFIX)
shlib_major = lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
endif
ifeq ($(PORTNAME), openbsd)
ifdef ELF_SYSTEM
LINK.shared = $(COMPILER) -shared -Wl,-x,-soname,$(soname)
SHLIB_LINK += -lc
else
LINK.shared = $(LD) -x -Bshareable -Bforcearchive
endif
endif
ifeq ($(PORTNAME), bsdi)
ifeq ($(DLSUFFIX), .so)
LINK.shared = $(COMPILER) -shared -Wl,-x,-soname,$(soname)
SHLIB_LINK += -lc
endif
ifeq ($(DLSUFFIX), .o)
LINK.shared = shlicc -O $(LDREL)
endif
endif
ifeq ($(PORTNAME), freebsd)
ifdef ELF_SYSTEM
shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
LINK.shared = $(COMPILER) -shared -Wl,-x,-soname,$(soname)
else
shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
LINK.shared = $(LD) -x -Bshareable -Bforcearchive
endif
endif
ifeq ($(PORTNAME), netbsd)
ifdef ELF_SYSTEM
LINK.shared = $(COMPILER) -shared -Wl,-x,-soname,$(soname)
else
LINK.shared = $(LD) -x -Bshareable -Bforcearchive
endif
endif
ifeq ($(PORTNAME), hpux)
shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
ifeq ($(with_gnu_ld), yes)
LINK.shared = $(CC) $(LDFLAGS_NO_L) -shared -Wl,-h -Wl,$(soname)
else
# can't use the CC-syntax rpath pattern here
rpath =
ifeq ($(enable_rpath), yes)
LINK.shared = $(LD) +h $(soname) -b +b '$(rpathdir)'
else
LINK.shared = $(LD) +h $(soname) -b
endif
# On HPUX platforms, gcc is usually configured to search for libraries
# in /usr/local/lib, but ld won't do so. Add an explicit -L switch so
# ld can find the same libraries gcc does. Make sure it goes after any
# -L switches provided explicitly.
ifeq ($(GCC), yes)
SHLIB_LINK := $(filter -L%, $(SHLIB_LINK)) -L/usr/local/lib $(filter-out -L%, $(SHLIB_LINK))
endif
endif
# do this last so above filtering doesn't pull out -L switches in LDFLAGS
ifeq ($(GCC), yes)
SHLIB_LINK += `$(CC) $(LDFLAGS) -print-libgcc-file-name`
endif
endif
ifeq ($(PORTNAME), irix)
shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
LINK.shared = $(COMPILER) -shared -Wl,-set_version,sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
endif
ifeq ($(PORTNAME), linux)
LINK.shared = $(COMPILER) -shared -Wl,-soname,$(soname) $(exported_symbols_list)
endif
ifeq ($(PORTNAME), solaris)
ifeq ($(GCC), yes)
LINK.shared = $(CC) -shared
else
LINK.shared = $(CC) -G $(CFLAGS) # CFLAGS added for X86_64
endif
ifeq ($(with_gnu_ld), yes)
LINK.shared += -Wl,-soname,$(soname)
else
LINK.shared += -h $(soname)
endif
endif
ifeq ($(PORTNAME), sunos4)
LINK.shared = $(LD) -assert pure-text -Bdynamic
endif
ifeq ($(PORTNAME), osf)
LINK.shared = $(LD) -shared -expect_unresolved '*'
endif
ifeq ($(PORTNAME), sco)
ifeq ($(GCC), yes)
LINK.shared = $(CC) -shared
else
LINK.shared = $(CC) -G
endif
LINK.shared += -Wl,-z,text -Wl,-h,$(soname)
endif
ifeq ($(PORTNAME), svr4)
LINK.shared = $(LD) -G
endif
ifeq ($(PORTNAME), univel)
LINK.shared = $(LD) -G -z text
endif
ifeq ($(PORTNAME), unixware)
ifeq ($(GCC), yes)
LINK.shared = $(CC) -shared
else
LINK.shared = $(CC) -G
endif
LINK.shared += -Wl,-z,text -Wl,-h,$(soname)
endif
ifeq ($(PORTNAME), cygwin)
shlib = cyg$(NAME)$(DLSUFFIX)
haslibarule = yes
endif
ifeq ($(PORTNAME), win32)
shlib = lib$(NAME)$(DLSUFFIX)
haslibarule = yes
endif
ifeq ($(enable_rpath), yes)
SHLIB_LINK += $(rpath)
endif
endif # enable_shared
##
## BUILD
##
.PHONY: all-lib all-static-lib all-shared-lib
all-lib: all-static-lib all-shared-lib
all-static-lib: lib$(NAME).a
all-shared-lib: $(shlib)
ifndef haslibarule
lib$(NAME).a: $(OBJS)
$(LINK.static) $@ $^
$(RANLIB) $@
endif #haslibarule
ifeq ($(enable_shared), yes)
ifneq ($(PORTNAME), win32)
ifneq ($(PORTNAME), cygwin)
ifneq ($(PORTNAME), aix)
# Normal case
$(shlib): $(OBJS)
$(LINK.shared) $(LDFLAGS_SL) $(OBJS) $(SHLIB_LINK) -o $@
# If we're using major and minor versions, then make a symlink to major-version-only.
ifneq ($(shlib), $(shlib_major))
rm -f $(shlib_major)
$(LN_S) $(shlib) $(shlib_major)
endif
# Make sure we have a link to a name without any version numbers
ifneq ($(shlib), $(shlib_bare))
rm -f $(shlib_bare)
$(LN_S) $(shlib) $(shlib_bare)
endif
else # PORTNAME == aix
# AIX case
$(shlib): lib$(NAME).a
$(MKLDEXPORT) lib$(NAME).a > lib$(NAME)$(EXPSUFF)
$(COMPILER) $(LDFLAGS_NO_L) $(LDFLAGS_SL) -o $@ $< -Wl,-bE:lib$(NAME)$(EXPSUFF) $(SHLIB_LINK)
endif # PORTNAME == aix
else # PORTNAME == cygwin
# Cygwin case
$(shlib) lib$(NAME).a: $(OBJS)
ifndef DLL_DEFFILE
$(DLLTOOL) --export-all $(DLLTOOL_DEFFLAGS) --output-def $(NAME).def $(OBJS)
$(DLLWRAP) $(LDFLAGS_SL) -o $(shlib) --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(NAME).def $(OBJS) $(SHLIB_LINK)
$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(NAME).def --output-lib lib$(NAME).a
else
$(DLLWRAP) $(LDFLAGS_SL) -o $(shlib) --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(DLL_DEFFILE) $(OBJS) $(SHLIB_LINK)
$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib lib$(NAME).a
endif
endif # PORTNAME == cygwin
else # PORTNAME == win32
# win32 case
$(shlib) lib$(NAME).a: $(OBJS)
ifndef DLL_DEFFILE
$(DLLTOOL) --export-all $(DLLTOOL_DEFFLAGS) --output-def $(NAME).def $(OBJS)
$(DLLWRAP) $(LDFLAGS_SL) -o $(shlib) --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(NAME).def $(OBJS) $(SHLIB_LINK)
$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(NAME).def --output-lib lib$(NAME).a
else
$(DLLWRAP) $(LDFLAGS_SL) -o $(shlib) --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(DLL_DEFFILE) $(OBJS) $(SHLIB_LINK)
$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib lib$(NAME).a
endif
endif # PORTNAME == win32
endif # enable_shared
##
## INSTALL
##
.PHONY: install-lib install-lib-static install-lib-shared
install-lib: install-lib-static install-lib-shared
install-lib-static: lib$(NAME).a
$(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/lib$(NAME).a'
ifeq ($(PORTNAME), darwin)
cd '$(DESTDIR)$(libdir)' && \
ranlib lib$(NAME).a
endif
ifeq ($(enable_shared), yes)
install-lib-shared: $(shlib)
$(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)'
ifneq ($(PORTNAME), cygwin)
ifneq ($(PORTNAME), win32)
ifneq ($(shlib), $(shlib_major))
cd '$(DESTDIR)$(libdir)' && \
rm -f $(shlib_major) && \
$(LN_S) $(shlib) $(shlib_major)
endif
ifneq ($(shlib), $(shlib_bare))
cd '$(DESTDIR)$(libdir)' && \
rm -f $(shlib_bare) && \
$(LN_S) $(shlib) $(shlib_bare)
endif
endif # not win32
endif # not cygwin
endif # enable_shared
##
## UNINSTALL
##
.PHONY: uninstall-lib
uninstall-lib:
rm -f '$(DESTDIR)$(libdir)/lib$(NAME).a'
ifeq ($(enable_shared), yes)
rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \
'$(DESTDIR)$(libdir)/$(shlib_major)' \
'$(DESTDIR)$(libdir)/$(shlib)'
endif # enable_shared
##
## CLEAN
##
.PHONY: clean-lib
clean-lib:
rm -f lib$(NAME).a
ifeq ($(enable_shared), yes)
rm -f $(shlib_bare) $(shlib_major) $(shlib)
ifdef EXPSUFF
rm -f lib$(NAME)$(EXPSUFF)
endif
endif
ifeq ($(PORTNAME), cygwin)
rm -f $(NAME).dll $(NAME).def
endif
ifeq ($(PORTNAME), win32)
rm -f $(NAME).dll $(NAME).def
endif
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